Published September 1988 | Version v1
Report Metadata-only

Cometary dust composition

Creators

  • 1. Jet Propulsion Lab., Pasadena, CA (USA)

Description

The earth based measurements and in situ sampling of Comet Halley have provided new data about the chemical composition of cometary grains. Recent progress in laboratory studies of interplanetary dust particles (IDPs) complement the comet data, allowing inferences about the mineralogy and physical structure of the comet dust to be drawn from the observed elemental composition and infrared spectra. The in situ dust composition measurements at Halley, the composition of IDPs and their relation to comet dust, and the origin of the 3.4 micron hydrocarbon feature is discussed. Related discussion is also presented on aromatic components in comets and the 3.4 micron feature. These topics are briefly summarized

Additional details

Publishing Information

Imprint Title
Infrared observations of comets Halley and Wilson and properties of the grains
Journal Page Range
p. 50-63.
Report number
N--89-13330

Conference

Title
Infrared observations of Comets Halley and Wilson and properties of the grains.
Dates
10-12 Aug 1987.
Place
Ithaca, NY (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20035821
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AROMATICS; CHEMICAL COMPOSITION; COSMIC DUST; EMISSION SPECTRA; EXPERIMENTAL DATA; GRAIN SIZE; HALLEY COMET; INFRARED SPECTRA; SILICATES
Descriptors DEC
COMETS; CRYSTAL STRUCTURE; DATA; DUSTS; INFORMATION; MICROSTRUCTURE; NUMERICAL DATA; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; SILICON COMPOUNDS; SIZE; SPECTRA